Loom



J. JQULE AND C. A. COUPS.

1.00M! APPLICATION FILED MAR- 4. I916- RENEWED APR. 30, I920.

Pmented Sept. 28, 1920.

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J. JOULE AND C. A. COUPS.'

RENEWED APR. 30, I920.

Patented Sept. 28,

5 F; m mi w mwm 5 Z w wmfi ,UNITED sr rss JOSEPI-I JOULE AND CHAR-LES ALBERT PATENT orries.

cour e, or BELLEVILLE, NEW JERSEY ASSIGNORS TO EASTWOOD WIRE MANUFACTURING CUIVIPANY, OF BELLE- VILLE, NEW JERSEY, A CORPORATION OF NE? JERSEY.

LOOM.

Application filed March 4, 1916, Serial No. 82,028.

T 0 all whom it may concern: 1

Be it known that we, Josnrn JoULE, a I citizen of the United States, and a resident of Belleville, in the county of Essex and State of New Jersey, and CHARLES ALBERT Coors, a subject of the King of Great Britain, and a resident of Belleville, in the county of Essex and State of New Jersey, have jointly invented certain new and useful Improvements in Looms, of which the following is a specification.

Theinvention pertains more particularly to improvements in let-off and take-up mechanisms for looms, and more especially to the'take-up mechanism, and we illustrate the invention as embodied in a loom for weaving wire cloth of the character required for use in paper making machines,

' this wire cloth being of very fine mesh and tion requiring the utmost uniformity throughout its entire extent.

' The loom illustrated in the drawings presents'some well known features, these being the warp beam, breast beam, cloth beam and lay beam frame, these featuresbeingillustrated for the purpose of disclosing the nature of our present invention, which has to do with the mechanism whereby the warp wires are fed and kept under tension and the cloth as formed is wound upon the cloth beam. V

The invention will be fully understood from the detailed description hereinafter presented, reference being had to the accompanying drawings, in which:

Figure 1 is a side elevation of a sufficient portion of a loom to illustrate our'inven- Fig. 2 is a horizontal section, on a larger scale and partly broken away, through a portion of the loom, taken on the dotted line 2-2 of Fig. 1;

Fig. 3 is a vertical section, partly broken away and looking at the'inner face of the left hand'side frame, and

Fig. 4 is a View partly in section and partly broken away of a detail looking at the inner face of the right hand side frame of the loom.

In the drawings, 10 designates suitable side supporting frames for the loom parts, 11 the customary warp beam, 12 the breast beam, 13 the cloth beam, 14 the lay beam, 15 atransverse beam upon which a shuttle Specification of Letters Patent.

Patented Sept. 28, 1920. Renewed April 30, 1920. Serial No. 378,011.

carriage may e mounted in a well known manner, and 16 the warp wires, all of the reatures just mentioned being well known in this art. i

17 designates the driving shaft upon one end of which is mounted a belt wheel 18 to bedriven by a belt 19, as usual. Upon the driven shaft 9 is mounted a cam wheel 20 having two angularly projecting cam por tlons 21 to engage the point of a pivotallv mounted lever arm 22 whose shank end has pivotally connected with it a pawl 23 which cooperates with a ratchet wheel 24- for driving the shaft 25 by intermittent motions. The shaft 25 has secured upon its outer end a bevel gear wheel 26 which is in mesh with a bevel gear wheel 27 mounted ona longitudinal shaft 28 upon whose rear end is secured a bevel gear wheel 29 which is in mesh with a bevel gear wheel 30 secured on the lower end of a vertical shaft 31. whose upper end carries a worm 32 in mesh with a gear wheel33 secured on the shaft of the warp. beam 11. During the rotation of the driven shaft 9, the cam projections 21 are, one after another, carried under the free end of the lever arm 22 with the result of tilting said arm on its pivotal support and causing it through the pawl 28 to impart intermittent rotary motion to the ratchet wheel 24: and shaft 25. The motion of the shaft 25 is communicated through the gear wheels. 26. 27, shaft 28, gear wheels 29, 30, worm 3; and gear wheel 33 to the warp beam 11, with the result that said warp beam will be rotated intermittently to release therefrom slight portions of the warp wires 16 *ith each motion of the hem The mechanism just hereinbefore descrlbed has to do with the unwindingof the warp wires from the warp beam, and it will be observed that this unwinding of the warp wires is accomplished by brief accurate intermittent motions of the warp beam.

The means for placing a tension on the warp wires and winding the cloth upon the cloth beam 13 will now be described. The cloth as woven is drawn over the breast beam 12 and wound upon the cloth beam 13.

The cloth beam 13 has upon the end of its shaft a sprocket wheel '34 upon which is mounted the lower loop of an upwardly and rearwardly extending endless sprocket chain 35, the upper loop of said chain being upon a smallsprocket wheel The sprocket wheel 36 is secured upon a transverse'shaft 37 v.mour'lted in the side frames of the loom, and upon saidshaft 37, adjacent to the 7 wheel 42 being prevented extends around under a pulley from WlllCliiS suspended by a rod 45 a series.

sprocket wheel 36, is secured a sprocket wheel 38 upon which is placed the upper loop of a sprocket chain'39. The sprocket chain 39extends downwardly andthen up war'dly carrying a ratchet wheel 42. One side or reach oo'f the sprocket chain is .slack and one side or reach of the sprocket chain 39 is slack and extends over an idler 43 and thence upwardly and upon the sprocket wheel 40, while the other side or reach ofthe sprocket chain 35 is taut and likewise the other side '42 and resist the tendency of the weights 39 and sprocket wheelto, through the chain 40, turn the shaft 41 m a reverse direction,

said weights by means of said pawls 48 and from drawing the .chain 39 frontwardly over the wheel and descending to the extent that might otherwise be permitted thereby. One purpose of theweig'hts 46 acting on the chain 39 is to rotate in a proper" manner and whenever permitted soto do, the sprocket wheel 38 and sprocket wheel 36 in a direction to cause the travel of the taut or. upper side of the chain 35 over/said sprocket wheel 36 andeifect 3 through the rotation of the sprocket wheel by the vwheel 38 is caused through the' 34 that movement of the cloth beam 13 which will wind the cloth thereon; lVhile the weights 46 act against the sprocket wheel 40, shaft 41 and toothed wheel 42 they are prevented by the pawls or dogs 48 from drawing the sprocket chain 39 toward the front over said sprocket wheel 40 and their action-places a tension on the chain 39 wheresprocket chain 35 and sprocket wheel 34 to lace-a tension on the warp wires 16 and also rotate the cloth beam 13 in a direction to wind up the cloth as made. The warp beam intermittently releases the warp wires and the weights 46 prevent slackness in said wires by placing the wires under tension and also effecting the winding of the cloth on the beam 13. I

The rotary motion imparted to the cloth beam 13 by the weights 46' and the chains and. connections just hereinbefore described is intermittent and timed with the moveand over a small sprocket wheel 40' which is secured on a transverse shaft 41 Upon the right hand ment of the lay and the rotation of the warp beam. With each partialrotation of the sprocket wheel 38, sprocket wheel 34 and cloth beam 13, a'po'rtion ot't'he chain 39 at the rear side of the sprocketwheel 38 will travel downwardly toward the weights 46 and the weights 46'will elongatethe loop 47 at such times accordingly. It is desired however that the weights 46 shall not travel all the way down to-the'floor or other support, and hence we provide means for restoring said weights to their elevated position with each movement of the lay towaro the rear. The descent of the weights 46 takes place while the lay is making its beat,

and thereafter when the lay is returned toward the rear, the weights 46 are elevated by the mechanism shown more particularly in Fig.3, in which 49 designates a lever arm swiveled on the shaft 41, 50 a pawl carried by said lever arm, 51a ratchet wheel rigidly secured on said shaft and engaged byr-said pawland 53 a crank arm rigidly secured at its front end to; the layand at its rear end connected by means-of a flexible chain orthe like 52 to said lever arm 49. lVith' each operation of the lay to beat the weft, the crank arm 53 will turn downwardly and due to the flexibility of the chain will have no effect on the lever arm 49, but with each backward. movement of the lay, the

crank'arm 53will be swung upwardly and, drawing on the chain 5:2, pull the lever arm 49 upwardly. and cause the pawl, 50 to rotate the ratchet gwheel 51 ,5 shaft 41 and sprocket wheel 40 toward the lean-with the result that while'the-forward portion of the chain 39 is acting against the warp beam and warp,sai d pawl 50 by its cotiperation with the sprocketjwheel 40 will cause the rear portion-of the sprocket chain 39 to travel upwardly and rearwardly over said sprocket wheel 40, thus'raising the weights 46. With each backwardmovement'of the lay, after its beat,'the crank arm53 and lever arm 49, through thepawl 50 and ratchet wheel 51, effect a limited rotation of the sprocket wheel 4() sufficient to elevate the weights46 to the extent that said weights descend while the lay is making its beat.

We provide a cord or other flexible con-- nection 54 on the lay '14 (Fig. 3) and connect the same with the lever arm 49 for the purpose of rendering, thegconnection between said-lever arm and crank arm 53 inoperative during such time as it may be necessary to repair the cloth on the; machine andmove the lay in doing so.) At such times it isdesired that when the lay 14 is moved, the lever arm 49 may not operate to elevatethe weights 46. The cord 54 extends from a'windingknob 55v upwardly over a pulley-wheel 56 and thence rears wardly over a pulley-wheel 57 suspended from the crank arm 53 and thence down- Wardly to the lever arm 49, a spring 58 being interposed in said cord to relieve the cord of slackness during .such time as the loom is in regular operation. When it is desired to repair the cloth on the loom and at the same time be able to move the lay without actuating the lever arm 49, the attendant will, by turning the knob 55, wind the'cord 54 thereon tosuch; extent as to elevate the forward end of the lever arm 49 sufliciently to place such slackness in the chain 52 that said chain will be incapable of affecting the lever arm 49during such periods as the lay may be moved while the repair "of the cloth is taking place. The cord 54 performs no duty while the loom is in regular operation and is present merely as a convenient means for rendering the lever arm 49 inoperative preparatory to the repairing of the cloth. 7 7

We shall preferably provide at each side of the loom the chains and their sprocket wheels and weights, shown in Fig; 1, or in other words duplicate said chains, sprocket wheels and weightsat each side of the loom, but ordinarily the one gear Wheel and Worm for the warp beam will be sufficient.

The operation of the loom will be understood without further detailed explanation.

The warp beam rotates intermittently to' feed off warp wires and the weight 46 is suspended and acts against the warp beam to wind the cloth thereon as woven and tension the warp strands, and means are provided operable by the lay for maintaining the weight substantially in a given position. The movement of the weight bothdownwardly and upwardly is very slight, and hence the weight is automatically maintained in substantially the initial position given to it.

What we claim as our invention and desire to secure by Letters-Patent, is:

1. In a loom, in combination, a warpbeam, a cloth-beam, a lay, means for rotating the warp-beam to feed the warp-wires, a suspended weight acting against the clothbeam to wind the cloth thereon as woven and tension the warp-strands, and means comprising pawl and ratchet mechanism after each beat of the lay for'automatically elevating the said weight and thereby maintaining the same substantially in a given position.

2. In a loom, in combination, a warpbeam, a cloth-beam, a lay, means for intermittently rotating the warp-beam to intermittently feed the warp-wires, a suspended weight acting against the cloth'beam to wind the cloth thereon as woven and tension the warp-strands, and means comprising pawl and ratchet mechanism after each beat of the lay for automatically elevating the said weight and thereby maintaining the same substantially in a given position.

tion, the means suspending the weight comprising a sprocket chain and sprocket wheels upon which the chain is mounted and in a loop of which chain the weight is held suspended.

4. I11 a loom, in combination, a warp beam, a cloth-beam, a lay, means for rotating the warp-beam to feed the warp wires, a weight, means suspending said weight and connected with the cloth beam to wind the cloth thereon and tension the warp strands,-

and means operable by the lay for maintaming the weight substantially in a given position, the means suspending the weight comprising a sprocket chain and sprocket wheels upon which the chain is mounted and in a loop of which chain the weight is held suspended, and said chain being adapt ed to travel in one end portion in a direction to permit the weight to descend slightly on the rotary motion of the cloth beam, and the means for maintaining the weight sub stantially in a given position being a pawl arm engaging the --shaft of the sprocket wheel at the other endportion of the said chain and a crank arm connected with the lay andhaving a flexible connection with said pawl arm, whereby on the movement of the lay in one direction, said crank arm may actuate said pawl arm to effect the upward travel of a portion of said chain and thereby elevate the weight to the extent that it had previously descended.

In a loom, a warp-beam, a cloth-beam, a lay, means for rotating the warp-beam to feed the warp wires, and means for rotating the cloth-beam to wind the cloth thereon as woven and tension the warp strands comprising a sprocketwheel on the end of the cloth beam shaft, a sprocket wheel on an auxiliary shaft, a sprocket chain connecting said sprocket wheels, a second sprocket wheel on said auxiliary shaft, .a sprocket wheel on a second auxiliary shaft, 3. chain connecting said last mentioned sprocket wheel and said second sprocket wheel and downwardly looped between said wheels and a weight suspended in said loop of said chain and acting against one portion of the chain to effect the winding of the cloth beam, combined with means for preventing said second auxiliary shaft from rotating under the force of said weight, and means for, at predetermined intervals, rotating said second auxiliary shaft to effect the upward travel of a portion of the chain-loop suspending said weight, whereby said weight whiledescending on the -winding of the 7 on as woven and tension the warp strands i 7 an auxiliary-shaft, asprocketchain con w nectmg said sprocket wheels, asecond 'sprocket wheel on said auxiliary shaft, a sprocket wheel on a second auxillary shaft,

' sprocket V Y pending sald cloth beam is elevated on the rotation of said second auxiliary shaft.

, 6:111 a'loom, a warp-beam, aVcloth-beam,

a lay, means for rotating the warp-beam to feed the warp wires, and means for rotating the cloth-beam to wind the cloth therecomprisinga sprocket wheel on the end of the cloth beam shaft, a sprocket wheel on a chain connecting said I last mentioned wheel and said second sprocket wheel and downwardly looped between'said wheelsand a weight suspended in said loop of said chain-and acting against one portion of the chain to efi'ect the winding of the cloth beam, combined with means vfor preventing said second auxiliary shaft from 170-,

tatlng under the force of said weight, and

means for, at predetermined intervals, ro-

tating said second auxiliary shaft on the A backstroke of the lay toeffect the upward travel of a portion of the chain-loop susweight, whereby saidweight whi e descending on the winding of the cloth-beam iselevated on the rotation of said second auxiliary shaft. v V

7. In a 100m, in combination, a warpbeam, a cloth-beam, a lay, meansjfor rotating the warp-beam to feed the warp wires,

a weight, means suspending said weight and connected -with the cloth beam to wind the cloth thereon and tension the warp strands and means after eachbeatof the lay for automatically elevatingthe-said weight and thereby maintaining the same substantially in a given position,-the means suspending the weight comprising a sprocket chain-and sprocket wheels. upon'whichjthe chain is sprocket wheels upon which the chain is,

mounted 'and in a loop oft-which chain the weight is .heldsuspended, Essex-and State of New Jersey, this Qlday of February, 1916. i ,V JOSEPH JOULE.- c

7 CHARLES ALBERT COUPS.

Witnessest; i

HENRY: L. DENIsON,

THEO. L. BROWE.

signed at Belleville', in the county of 

